Name:	ventricular myocardium
Synonyms:
Definition:	Muscular layer of the cardiac ventricle composed of a compact myocardial layer surrounding the trabecular layer.
Ontology:	Anatomy Ontology [ZFA:0005061]

Name:	Z disc
Synonyms:	Z band, Z disk, Z line
Definition:	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
Ontology:	GO: Cellular Component [GO:0030018] QuickGO AmiGO